NNN Property Insurance Requirements: What Landlords Can Require

One of the clearest landlord protections in a NNN lease, and one that's frequently underspecified, is the insurance section. You can and should require specific coverage types, minimum limits, and policy conditions from your tenants. What you don't require, you absorb as risk.

Here's a practical breakdown of what to require, how to verify it, and what happens when a tenant lapses.

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The Insurance Obligations in a NNN Lease

A standard NNN lease places primary property-level insurance obligations on the tenant. The tenant is operating in and responsible for the leased premises, so they're responsible for insuring their operations and improvements. The landlord retains separate insurance obligations, typically for the building shell, but day-to-day operating risk insurance belongs to the tenant.

This structure breaks down when leases are vague about what the tenant must carry. "Adequate insurance" and "commercial general liability coverage" without specified minimums are not enforceable standards. The lease should specify coverage types, minimum limits, and required policy conditions with enough precision to actually verify compliance.

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Required Coverage Types: The Baseline

Commercial General Liability (CGL)

CGL covers the tenant's liability for bodily injury and property damage occurring on or adjacent to the leased premises. Standard minimum thresholds:

$1,000,000 per occurrence
$2,000,000 aggregate

For tenants with higher foot traffic, alcohol service, or other elevated liability risks (restaurants, fitness centers, entertainment venues), require higher limits: $2M per occurrence and $5M aggregate, or umbrella/excess liability coverage bringing the total to $5M to $10M.

Property Insurance / Tenant's Personal Property

The tenant should insure their trade fixtures, equipment, inventory, and leasehold improvements on an "all-risk" or "special form" basis. An uninsured loss can trigger the tenant's inability to operate and pay rent, so even though this is the tenant's property, you want them covered.

Business Interruption / Business Income Insurance

Business interruption insurance covers the tenant's loss of income and continuing expenses, including rent, when a qualifying casualty event temporarily prevents operation. Requiring BI coverage with adequate limits directly protects your rent stream during reconstruction periods.

Workers' Compensation and Employer's Liability

Required for any tenant with employees. Standard limits are statutory workers' comp and $1M employer's liability.

Umbrella / Excess Liability

For larger tenants, higher-traffic uses, or properties with elevated liability risk, require an umbrella or excess liability policy extending the underlying CGL, auto, and employer's liability limits to $5M to $10M total.

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Additional Insured Status: Non-Negotiable

The landlord, and typically the landlord's lender, must be named as an additional insured on the tenant's CGL policy. This is not optional and not a negotiating point.

Additional insured status gives the landlord the right to be defended and indemnified by the tenant's insurer for covered claims involving the leased premises. The endorsement should specifically identify "landlord" and "landlord's lender" with the property address.

Primary and Non-Contributory Language

The tenant's coverage should be primary and non-contributory. The tenant's insurer pays first, before any insurance the landlord carries, and cannot require the landlord's carrier to contribute. Without this, competing insurers can argue about which policy has primary responsibility, delaying claims.

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Waiver of Subrogation

Require the tenant's property and liability policies to include a waiver of subrogation in favor of the landlord. Without it, the tenant's insurer, having paid a claim caused by your negligence or a building defect, can sue you to recover what they paid. A mutual waiver prevents insurers on both sides from pursuing claims against each other for insured losses.

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Proof of Coverage and Annual Verification

The lease should require the tenant to deliver proof of insurance before lease commencement and at each policy renewal. The standard form is the ACORD 25 Certificate of Insurance, which lists all required coverages, limits, the certificate holder (landlord), and additional insured status.

What to verify on each COI:

Coverage types and minimum limits match lease requirements
Policy effective and expiration dates (watch for coverage gaps at renewal)
Landlord named as additional insured
Waiver of subrogation shown
Insurer rated A-/VII or better by AM Best

A COI is not the policy. For material coverages like the additional insured endorsement and the waiver of subrogation, request copies of actual endorsements, not just certificate notations.

Policies expire and renew. Track COI expiration dates and require updated certificates within 10 days before each policy renewal. The lease should give the landlord the right, but not the obligation, to purchase required coverage at the tenant's expense if the tenant allows a policy to lapse, with the cost recovered as additional rent. Insurance failure should also be a specified default under the lease, giving the landlord the right to provide notice and pursue remedies including termination.

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The Landlord's Own Insurance

NNN leases typically require the landlord to maintain property insurance on the building shell and general liability for common areas. The tenant covers their space; you cover the building. This division should be explicitly defined in the lease so there's no ambiguity about who insures what, and your coverage requirements should align with both your lease obligations and your mortgage terms.

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The Operational Takeaway

Insurance requirements in NNN leases are only as good as the language that specifies them and the process that verifies compliance. Specify coverage types and minimum limits explicitly. Require certificates before commencement and at renewal. Verify the additional insured endorsement. Track expiration dates and follow up on lapses promptly.

The cost of a coverage gap only becomes visible when you need to make a claim, at which point the gap is not fixable.